SUSANDI, A. D. Critical Thinking Skills of Students in Solving Mathematical Problem. Numerical: Jurnal Matematika dan Pendidikan Matematika, [S. l.], v. 5, n. 2, p. 115–128, 2021. DOI: 10.25217/numerical.v5i2.1865. Disponível em: https://www.journal.iaimnumetrolampung.ac.id/index.php/numerical/article/view/1865. Acesso em: 14 jul. 2025.